Ngwa a na-ahụkarị
1. Aeration nke grit chambers
2. Aeration nke efere nha nhata
3. Aeration nke chlorine kọntaktị tankị
4. Aeration nke aerobic digesters
Ụdị ihe atụ
Mbukota & Nbupu



1. Aeration nke grit chambers
2. Aeration nke efere nha nhata
3. Aeration nke chlorine kọntaktị tankị
4. Aeration nke aerobic digesters